Tried it again, and in addition to the previous output, it included these lines after the segmentation fault:
(gdb) [0520/152951.107775:WARNING:angle_platform_impl.cc(49)] RendererVk.cpp:1962 (initialize): ANGLE VMA version: 2003000
free(): double free detected in tcache 2
[0520/152951.229402:ERROR:check.cc(297)] Check failed: false. NOTREACHED log messages are omitted in official builds. Sorry!
[0520/153006.232016:INFO:child_thread_impl.cc(926)] ChildThreadImpl::EnsureConnected()
And it just kind of hung there at that point, never closing out the command, indicating that it might not be a 'crash' so much as a process gone out of control. Perhaps.